Electric proportional control hydraulic multi-way reversing valve and control method thereof

A multi-way reversing valve, electric proportional technology, applied in multi-way valve, valve details, valve device and other directions, can solve the problems of complex control algorithm, difficult to popularize and apply in a large area, high implementation cost, and achieve high control accuracy and structure. Simple, responsive effects

Pending Publication Date: 2020-08-07
青岛鸿合数字技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an electric proportional control hydraulic multi-way reversing valve and its control method, which are used to solve the problems that the existing electric proportional multi-way valve has high implementation cost, complex control algorithm, and is difficult to popularize and apply in a large area

Method used

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  • Electric proportional control hydraulic multi-way reversing valve and control method thereof
  • Electric proportional control hydraulic multi-way reversing valve and control method thereof
  • Electric proportional control hydraulic multi-way reversing valve and control method thereof

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Embodiment Construction

[0049] In order to make the technical objectives, technical solutions and beneficial effects of the present invention clearer, the following in conjunction with the attached Figure 1-11 The technical scheme of the present invention is further described with specific embodiments. In the following embodiments, the direction in which the slide valve spool moves toward the drive unit is left, and the direction in which the slide valve spool moves away from the drive unit is right. .

[0050] An embodiment of an electric proportional control hydraulic multi-way reversing valve:

[0051] An electric proportional control hydraulic multi-way reversing valve includes a valve body 11 with multiple reversing units, each reversing unit includes a main valve core 12, and one end of each main valve core 12 is equipped with a group of electric proportional valves. Hydraulic control device, the other end of the main spool 12 can optionally be equipped with a manual control device 2, and eac...

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Abstract

The invention discloses an electric proportional control hydraulic multi-way reversing valve. The reversing valve comprises a valve body with a plurality of reversing units. Each reversing unit comprises a main valve element, wherein one end of the main valve element is provided with an electric proportional hydraulic control device, and the electric proportional hydraulic control device comprisesa driving unit for converting a rotating motion of a motor into a linear motion and a servo hydraulic unit for driving the main valve element after power amplification of a signal provided by the driving unit. The invention also discloses a control method of the electric proportional control hydraulic multi-way reversing valve. The main valve elements of the hydraulic multi-way reversing valve act along with a piston valve sleeve, and the piston valve sleeve acts along with the motor, so that charged stopping in any position in a stroke can be achieved, and the piston valve sleeve returns tothe middle position during power losing. The electric proportional control hydraulic multi-way reversing valve can solve the problems that an existing electric proportional multi-way valve is high inimplementation cost, complex in control algorithm and not easy to apply and popularize in a large area.

Description

technical field [0001] The invention belongs to the technical field of electro-hydraulic servo control of hydraulic multi-way directional valves, and mainly relates to a proportional multi-way directional valve under centralized control in a hydraulic system, in particular to an electric proportional control hydraulic multi-way directional valve and a control method thereof. Background technique [0002] The multi-way reversing valve (referred to as the multi-way valve) is a control valve group widely used in the hydraulic system of mobile machinery, which controls the reversing of hydraulic actuators (such as hydraulic cylinders), so that the hydraulic oil in the hydraulic system controls the movement of the actuators. The device for the direction and speed of movement; because it can combine various valves according to the requirements of different hydraulic systems, it has the advantages of compact structure, simple pipeline, small pressure loss, large flow rate, and conve...

Claims

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Application Information

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IPC IPC(8): F15B13/02F16K11/07F16K31/124F16K31/04
CPCF15B13/02F16K11/07F16K31/04F16K31/1225F16K31/124
Inventor 尹修杰
Owner 青岛鸿合数字技术有限公司
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